At the Baker’s Dozen, Phish will perform at least 26 sets, which means Trey, Mike, Page and Fishman will have plenty of time to play whatever they want. Sure, there will most likely be a “Possum” and a “Mike’s Song,” but after a deep dive of Phish’s 39 prior shows at MSG we discovered a few tracks that have never reverberated through the world’s most famous arena. “Destiny…